which of the following sequences is asymptotic to the sequence [(e^-n)+sinn-n^(1/3)]/[2cosn-n^(5/6)]? a) [-e^(-n)]/n^(5/6)] ; b) e^-n; c) sinn/2cosn; d) 1/n^(1/2) i was thinking that the part of the given sequence that "has more weight" is e^-n so..well,...no..uhmm...WHY????